10 thoughts on “Possible Positions on the Passage of Time”

Isn’t presentism a limiting case of the growing and shrinking block model? (in which the block that exists is reduced to a surface really). Well, this is so, if presentism is okay with saying that future will come into existence.

It’s been suggested (thanks JDN) that we add some possibilities, by taking each of the cases above, and restricting attention to the causal past/future of an observer (or set of observers). This kind of thing was first suggested by Stein (1991).

The Menger sponge spacetime is a cool idea. It’s a compact spacetime! However, it’s ridiculously discontinuous. This is weird, but I think the idea is worth taking seriously. It certainly seems unlikely that there could ever be an experiment establishing the continuity (let alone the analyticity!) of spacetime.